Lights out.
Arm out.
A butterfly-shaped pillow with room for your arm beside it, not under your head.
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What does your pillow look like at 3 a.m.?
Tap the one that sounds like you.
Folding it is a height fix. On your side, your shoulder lifts your head well above the mattress, and a flat pillow runs out of height. The butterfly shape builds that height into its raised side wings, so there's nothing to fold.
See the pillow →Stacking two is a height fix too, and they slide apart. This is one molded memory foam piece with raised sides for side sleeping and a center cradle for your head. It measures 4.7 inches at its tallest point.
See the pillow →That's the one this shape was drawn around. The curved edges leave space for your arms, so your arm can rest beside the pillow or hug it, instead of propping up your head.
See the pillow →Every curve has a job.
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- 1Raised side wingsExtra height where a side sleeper's head rests.
- 2Center head cradleA lower middle for when you roll onto your back.
- 3Removable, washable coverThe cover comes off and goes in the wash.
- +Space for your armsCurved edges so your arm has somewhere to go.
The real thing, up close.
Side-sleeping share: Sleep Foundation. Size: 21.3 × 14.2 × 4.7 in, per the brand. Trustpilot rating for the brand, checked September 2026.
The honest details.
- It feels firm at first.Contoured memory foam takes some getting used to. The maker suggests about a week of nights before judging it.
- Not for stomach sleepers.If you mostly sleep on your stomach or love a very soft pillow, this probably isn't your style.
- Shipping takes a while.US delivery is typically 8–12 business days.
- 60-day return window.Return shipping is paid by the customer and the original shipping fee isn't refunded. Check the full terms on the order page.
Give your arm the night off.
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