experiencing or accompanied by sleeplessness; "insomniac old people"; "insomniac nights"; "lay sleepless all night"; "twenty watchful, weary, tedious nights"- Shakespeare
providing protective supervision; watching over or safeguarding; "daycare that is educational and not just custodial"; "a guardian angel"; "tutelary gods"
marked by keen caution and watchful prudence; "they were wary in their movements"; "a wary glance at the black clouds"; "taught to be wary of strangers"