How to Choose a Dakimakura Inner Pillow: Sizes, Fills & Recommendations

We make the cover, so we spend a lot of time thinking about fabric, print quality, and how the artwork looks at full size. But the inner pillow is what decides how the cover actually looks once it's filled. Pick the wrong one, and even a great cover can look flat, saggy, or distorted.

We don't sell inners, so this guide has no sales angle. This is simply what we've learned from years of handling covers, talking to collectors, and seeing what happens when a good cover is paired with the wrong pillow.

Why the Inner Matters More Than People Think

Most newcomers treat the inner as an afterthought, usually whatever Amazon can deliver before the cover arrives. That's understandable. The cover is the art. The inner is just the pillow, right?

Not quite.

The inner is the canvas that your cover is stretched over. And 2-Way Tricot fabric is a knit with bidirectional stretch, meaning it conforms to whatever shape is inside it. A flat, under-filled inner makes the print sag. An overstuffed one distorts proportions. The wrong size misregisters the art entirely. A low-quality fill that clumps and flattens over six months takes a cover that should last years and turns it into a wrinkled, shapeless tube.

The inner also affects how the cover wears over time. Fills that compress unevenly create friction hotspots: areas where the fabric contacts the fill surface repeatedly in the same way. That's accelerated wear in exactly the places that show first.

It's worth getting right.

Size Guide: Getting the Match Right

This is the practical foundation, and it's where a lot of first-time buyers make an expensive mistake.

160 × 50cm is the standard. The community shifted from 150cm a number of years ago, and today the vast majority of doujin circle covers, including everything Heart Club produces, are 160 × 50cm. If you're buying your first inner and plan to collect seriously, this is the size to invest in.

What happens when sizes don't match:

A 160cm cover on a 150cm inner leaves slack at the bottom. The art droops. The zipper sits in the wrong place relative to the design. It's livable, but it's not what the artist intended and it's not what the cover was made for. In the other direction, a 150cm 2-Way Tricot cover can often fit a 160cm inner, but you should not force a tight cover or zipper.

Because 160 × 50cm is the community standard, the common recommendation is to buy a 160cm inner even if your first cover is 150cm. It leaves your options open for future covers, and the stretch of 2-Way Tricot usually accommodates the extra length. If the fit is too tight, remove some stuffing from a zippered inner until the cover and zipper sit without strain.

On 180 × 60cm: this format is growing, and many sites (including Heart Club!) can offer custom prints at this size. Just be aware that quality inners in this size are harder to source than standard 160cm options.

Filling Types: What's Actually Inside

For buyers, the useful distinction is between polyester fill and the smaller number of shredded memory foam options.

Polyester Fill (Polyfill)

Most dakimakura inners use polyester fiberfill, commonly called polyfill. That includes both cheap generic inners and premium models, so “polyester” alone is not a useful measure of quality. The fiber blend, fill weight, construction, and outer shell determine how the inner feels and how well it holds its shape.

Fill Weight and Firmness

For inners of the same size, fill weight indicates how substantial they will feel. Heavier inners are generally fuller and harder to compress flat. Lighter inners are easier to move and squeeze.

Weight is not a quality or firmness score. A heavier inner can still feel soft, while a lighter one can feel firm. Judge the fill weight alongside the manufacturer’s firmness description and long-term owner feedback.

Budget Inners and Lifespan

A cheap, lightly filled inner works as a temporary first option when the budget is tight. It is not a durable choice for heavy daily use.

In our experience, generic inners used every day often lose significant loft within six months to a year. The center flattens, the filling becomes uneven, and the cover begins to sag. Fluffing may redistribute the filling, but it will not restore fibers that have permanently compressed.

A high price does not guarantee a good inner. However, an unusually light product or a listing that omits basic specifications is a warning sign. If you expect to use the pillow every night, buy a better inner first. Replacing a flattened budget inner means paying for both the temporary pillow and its replacement.

Choosing the Right Feel

• For hugging: Choose a soft, responsive inner that quickly recovers after compression.
• For sleeping: Choose enough firmness and structure to support your weight without flattening overnight.
• For display: Choose an evenly filled inner with enough loft to keep the cover smooth without stretching it taut.

Shredded Memory Foam

Some 150 × 50cm and 160 × 50cm inners use shredded memory foam, which consists of loose pieces of foam rather than a single block. They feel heavier and denser than a typical light fiberfill inner, and they compress and recover more slowly. Some have zippered shells, so you can remove or redistribute the filling to adjust loft and firmness.

Shredded foam can shift and become uneven, so it may need occasional fluffing. Memory foam can also feel warmer than polyester fill, though this depends on the foam, ventilation, shell, and cover. A cooling shell may matter less once the inner is placed inside a separate dakimakura cover.

Choose shredded memory foam if you want adjustable loft and a slow, weighty feel for sleeping or hugging. It is not a proven durability or display upgrade. Purpose-made dakimakura options are still uncommon, and there is not enough long-term comparative evidence to say they hold a cleaner shape or outlast a good polyester inner.

Firmness & Loft: Personal Preference, Real Trade-Offs

Firmness is where it becomes personal, but there are still some objective things the inner needs to do for the cover.

The print appearance baseline: A 2-Way Tricot cover needs enough fill to eliminate surface wrinkles without being overstuffed. Too flat and the art sags, especially in the center of the design where you'd be making contact most. Too firm and the fabric stretches tight enough that proportions distort and the fabric loses its characteristic smooth drape. The target is a pillow that holds its shape while still having some give, visually plump without being taut.

Use case matters:

• Side sleepers generally prefer firmer fills with more structure. The pillow needs to support upper-body weight without compressing flat overnight. If you're waking up with the pillow half-flat under you, the fill weight is too low.
• Active huggers tend to prefer softer, more responsive fills with good recovery. You want something that pushes back, not something that just compresses and stays there.
• Display-only opens up the widest range of options, since comfort is secondary. Prioritize fill consistency and visual shape over feel.

Before first use: Inner pillows often arrive vacuum-packed or compressed. Open the packaging carefully, then work along the seams with your hands to loosen and redistribute the filling. Leave the inner flat and uncovered until it has recovered its full shape. Depending on how tightly it was packed, this may take one to three days.

A&J's official unpacking and recovery video demonstrates the process with a DHR6000. Other inners may have different instructions, so check the manufacturer's guidance before use.

The Inners Worth Knowing About

These are the inners we would actually consider.

A&J DHR Series

A&J is the old name people bring up when they talk about premium dakimakura inners. For years, the default answer was simple: get a DHR6000.

That advice is dated now.

The current A&J lineup is broader, and the old DHR6000 recommendation is better understood as the classic soft A&J option, now represented by the DHR6000HC. It is still made in Japan, and plenty of collectors like that softer DHR feel. But it is no longer the one obvious answer, especially for international buyers once proxy fees and shipping are included.

If you want the simplest modern recommendation, Dakimakuri's Kumochi/Kumoame line is usually easier to point people toward. If you specifically want an A&J inner, choose by feel:

• DHR6000HC is the classic soft option: gentle, familiar, and easiergoing than the heavier models.
• DHR7000H is the firmer mochi option: denser, more supportive, and better for people who compress softer inners too much.
• DHR7500 / DHR7500EVOLUTION is the balanced rebound option: lighter than the 7000H, with more emphasis on elasticity, shape retention, and a cleaner silhouette.
• DHR9000 is the flagship heavy option: interesting if you want A&J's most premium current model, but expensive enough that it should not be treated as the default.

The DHR6500, DHR6400, and DHR5200 also exist, but they are more niche: high-rebound, 150cm legacy sizing, and entry-level respectively.

Best for: Buyers who specifically want a Japanese-made A&J inner, already know what kind of firmness they prefer, or can source one without brutal shipping costs.

Dakimakuri Inners (Kumochi / Wataame / Kumoame)

Kumochi is our default recommendation for most buyers outside Japan. It has held up well over long-term use, and its weight, recovery, and adjustable filling make it easier to recommend than most alternatives.

Kumochi is the safest starting point. At 4.2kg, it feels soft without collapsing easily. Wataame is lighter and firmer. Kumoame is the heavyweight option at 6.5kg, made for people who want something noticeably heavier and squishier.

In our experience, Kumochi is more comfortable for hugging and holds its loft better over time, while the DHR7000H starts firmer and offers more immediate support.

Dakimakuri lists inner warehouses in the United States, Germany, and China, and says it ships from the nearest warehouse when stock is available. Check its current warehouse stock before ordering, since an unavailable model may ship from another region.

Best for: Most international buyers, regular hugging or sleeping, and anyone who wants a substantial inner with adjustable filling. Dakimakuri inners are available here.

Fules withAQUA NEXT

withAQUA NEXT takes a different approach from the heavier polyester-filled inners. Fules uses a purpose-built Cushion Knit shell that adds cushioning around the filling, and lists the finished inner at 3kg total.

That makes it lighter than Dakimakuri's Kumochi or Cuddly Octopus's inner. We would consider it for collectors who want a lighter Japanese-made option. For nightly side sleeping or anyone who tends to flatten softer pillows, we would still lean toward a heavier fill.

Available directly from Fules.

Best for: Lighter sleepers, display collectors, and buyers who want a lighter Japanese inner.

Cuddly Octopus Inner

Cuddly Octopus sells a 160 × 50cm inner with about 4kg of stuffing and 4.5kg total weight. That puts it in the same weight class as Dakimakuri's Kumochi and well above Fules withAQUA NEXT.

We have seen less long-term feedback on this inner than on the A&J DHR series or Dakimakuri's Kumochi. The weight is promising, but the track record is shorter.

Worth considering, particularly if you're already buying from Cuddly Octopus and want a single-source setup. Available worldwide from Cuddly Octopus.

Best for: Cuddly Octopus cover owners, buyers who want a high fill-weight inner from a community brand, those comfortable with a newer option with a shorter review trail.

Lower-Cost Options (Generic Amazon / AliExpress Inners)

Buying a cheap inner is one of the most common beginner regrets we've seen. Generic inners can work as a temporary first option when the budget is tight, but they are a poor fit for heavy daily use.

Compare the listed fill weight, firmness, shell, zipper construction, and long-term owner feedback. A listing that omits basic specifications is a warning sign.

Best for: Buyers trying the hobby before investing in an inner for heavy daily use.

Maintaining Your Inner Pillow

The inner doesn't need nearly as much attention as the cover, but it's not zero-maintenance either.

Fluffing: Give it a good shake and manual fluffing a few times a week. Redistributing the fill prevents permanent compression in high-contact areas. It takes about thirty seconds and makes a real difference in how evenly the cover sits.

Washing: Most people never wash their inners, and that's usually fine if the cover is washed regularly. The cover does most of the hygiene work. If you feel the inner needs a wash:

• For inners with zippered shells (like Dakimakuri's), the community-preferred method is removing the filling entirely, washing the shell on a gentle cycle, and air drying before restuffing. Machine-stuffed inners won't redistribute as evenly by hand, so expect some difference after restuffing.
• For sewn-shut inners, machine wash on a gentle/delicate cycle with a small amount of mild detergent. Use warm (not hot) water. Run it through two spin cycles to remove as much moisture as possible, then air dry completely, with periodic refluffing as it dries to prevent the fill from clumping in one spot.
• Full drying is non-negotiable. An inner that's even slightly damp when covered and put back into use will develop mildew, and that smell doesn't wash out. Give it a full 24–48 hours of air drying before it goes back in the cover.

Signs it's time to replace:

• Permanent flat spots that don't respond to fluffing
• Lumpy or uneven feel across the surface (fill migration past the point of redistribution)
• Odors that survive washing
• The cover noticeably sagging at the center even after the inner is freshly fluffed

Rotation: The same rotation advice from our cover care guide applies here. If you always sleep on the same side of the pillow, that side wears faster. Flip it regularly. It extends both the inner and the cover.

Pairing Your Inner with a 2-Way Tricot Cover

2-Way Tricot follows the shape underneath it, so flat spots and uneven filling show through the cover. Maple Syrup drapes more fluidly than Standard 2-Way Tricot and makes those imperfections even easier to see.

If you're buying a Maple Syrup cover, this is where spending more on the inner makes the clearest visual difference.

Frequently Asked Questions

For cover care once your setup is complete, see our 2-Way Tricot Care Guide. For fabric options and what goes into our printing process, visit our fabric options page.

Resources

This guide draws from care practices and product knowledge developed by the broader dakimakura community. For additional perspectives on inners, storage, and fabric-specific care, see:

• Dakimakuri Inner Pillows: accessible premium inners for international buyers
• Cuddly Octopus Inner Pillows: an alternative inner option with worldwide shipping
• A Comprehensive Guide to Dakimakuras as a Hobby: the "Daki Bible", a community-favorite resource covering inners, storage, and more

About Heart Club
Heart Club is a dakimakura cover brand that commissions exclusively human artists for every design. No AI generation, no AI upscaling, no exceptions. Every cover is illustrated by a credited professional illustrator whose style is matched specifically to the character. We ship worldwide in discreet, unbranded packaging.