rest - be at rest

practice bundling, bundle - sleep fully clothed in the same bed with one's betrothed

catch a wink, catnap, nap - take a siesta; "She naps everyday after lunch for an hour"

sleep in, sleep late - sleep later than usual or customary; "On Sundays, I sleep in"

hibernate, hole up - sleep during winter; "Bears must eat a lot of food before they hibernate in their caves"

aestivate, estivate - sleep during summer; "certain animals estivate"