catch some Z's, kip, sleep, slumber
wake
be awake, be alert, be there
bundle, practice bundling
sleep fully clothed in the same bed with one's betrothed
catch a wink, catnap, nap
take a siesta
sleep in, sleep late
sleep later than usual or customary
hibernate, hole up
sleep during winter
aestivate, estivate
sleep during summer
doze, drowse, snooze
sleep lightly or for a short period of time