The floor is where most of the day happens before they walk. This is the layer between the baby and it.

Brown bears on bikes, coasting through rolling hills.

The Bears on Bikes muslin quilt is four layers of Tanboocel® Bamboo Viscose and cotton muslin, lightly quilted through and reversible. It measures 47 by 47 inches — wide enough to be a real tummy-time mat on a hard floor, not a token square that rucks up the moment they push against it.

Material. Four layers of Tanboocel® Bamboo Viscose blended with cotton and woven into open-weave muslin. Tanboocel® is a branded bamboo viscose made through a closed-loop process — third-party verified, with a lower water and chemical footprint than the generic bamboo rayon most brands quietly label "bamboo." Four layers give it weight and drape without making it warm; the open weave keeps air moving through it.