This is innovative but kind of hilarious. The $1,400-$1,800 Cuddle Mattress has slots running across it crosswise, providing a space for errant limbs to go, both with and without a partner:
Stomach-sleeper? Here's a handy place to tuck those pesky toes:
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I'd be curious to try this out, though I suspect the channels would become repositories for dead skin and hair. And gimmickiness aside, I can't deny that this does seem to provide some ergonomic benefit for side-sleepers.
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