bolster (
http://definr.com/bolster)
n : a pillow that is often put across a bed underneath the
regular pillows [syn:
long pillow]
v 1: support; of morale, theories, etc. [syn:
support, {bolster
up}]
2: prop up with a pillow or bolster
3: add padding to; "pad the seat of the chair" [syn:
pad]