schlummern

Etymology
An originally Low and Central German word, from northern and, , from , from. Cognate with 🇨🇬, 🇨🇬.

Verb

 * 1)  to sleep lightly or briefly; to doze; to slumber

Usage notes

 * Schlummern typically refers to actual sleep, not just rest with one’s eyes closed. The synonym has both of these meanings.