English
sleepward
From sleep + -ward.
A compound of sleep + -ward
Proto-Germanic *slēpaną ‘to sleep’
Proto-West Germanic *slāpan
Anglian Old English slēpan ‘to sleep’
Middle English slepen ‘to sleep’
English sleep
Today it means
adv toward sleep
Language periods are conventional ranges, not dates for this word.
Etymograph / sleepward