Following are all the nightlong like words, in the list below.
OVERNIGHT
100% like nightlong
LONG
99.92% like nightlong
ALL-NIGHT
33.38% like nightlong
DAYSLONG
33.38% like nightlong
ALL-DAY
33.38% like nightlong
NOCTURNAL
33.38% like nightlong
NIGHTLY
33.38% like nightlong
NIGHTTIME
33.38% like nightlong
NOCTIDIAL
33.38% like nightlong
NIGHTFUL
33.38% like nightlong
DAYLONG
33.38% like nightlong
NIGHTFARING
33.38% like nightlong
WEEKSLONG
33.38% like nightlong
OVERNITE
33.38% like nightlong
AROUND-THE-CLOCK
33.38% like nightlong
WINTERLONG
33.38% like nightlong
NOCTIDIURNAL
33.38% like nightlong
WEEKLONG
33.38% like nightlong
DAY-TO-NIGHT
33.38% like nightlong
INTERNIGHT
33.38% like nightlong
EVERYNIGHT
33.38% like nightlong
NIGHTWANDERING
33.38% like nightlong
INTRANIGHT
33.38% like nightlong
SEASONLONG
33.38% like nightlong
EVENINGFUL
33.38% like nightlong
NIGHTSHINING
33.38% like nightlong
ONE-DAY
33.38% like nightlong
NIGHTWARD
33.38% like nightlong
LATE-NIGHT
33.38% like nightlong
SUMMERLONG
33.38% like nightlong
NIGHT-BRIGHT
33.38% like nightlong
NIGHTCAPPED
33.38% like nightlong
NOCTIVAGANT
33.38% like nightlong
TRINOCTIAL
33.38% like nightlong
NYCHTHEMERAL
33.38% like nightlong
HOURLONG
33.38% like nightlong
NIGHTCLOTHED
33.38% like nightlong
NIGHTED
33.38% like nightlong
SPRINGLONG
33.38% like nightlong
NICTEMERAL
33.38% like nightlong
MULTIHOUR
33.38% like nightlong
MIDNIGHTISH
33.38% like nightlong
NOCTAMBULANT
33.38% like nightlong
EVENINGLESS
33.38% like nightlong
MONTHLONG
33.38% like nightlong
MIDNIGHTLY
33.38% like nightlong
MENSTRUAL
33.38% like nightlong
NIGHTDRESSED
33.38% like nightlong
DIEL
33.38% like nightlong
NIGHTMARY
33.38% like nightlong
BLACK AS NIGHT
33.38% like nightlong
MIDNIGHT
33.38% like nightlong
MOONLESS
33.38% like nightlong
DAILY
33.38% like nightlong
WEEKNIGHTLY
33.38% like nightlong
VESPERAL
33.38% like nightlong
MORROWLESS
33.38% like nightlong
SEMINOCTURNAL
33.38% like nightlong
MOON-BLIND
33.38% like nightlong
DARKENED
33.38% like nightlong
MOONLIT
33.38% like nightlong
TWI-NIGHT
33.38% like nightlong
NIGHTBLIND
33.38% like nightlong
SIXTY-SECOND
33.38% like nightlong
FAST ASLEEP
33.38% like nightlong
NYCTALOPIC
33.38% like nightlong
VESPER
33.38% like nightlong
EONIC
33.38% like nightlong
LATE
33.38% like nightlong
EQUIDIURNAL
33.38% like nightlong
MOONY
33.38% like nightlong
DUSKY
33.38% like nightlong
NIGHT-BLIND
33.38% like nightlong
DARKLING
33.38% like nightlong
DAYTIME
33.38% like nightlong
PREMIDNIGHT
33.38% like nightlong
DAYFUL
33.38% like nightlong
MOONLIGHTED
33.38% like nightlong
MOONLITTEN
33.38% like nightlong
THIRTY-SECOND
33.38% like nightlong
TWENTY-SECOND
33.38% like nightlong
ACRONICAL
33.38% like nightlong
FULLMOONED
33.38% like nightlong
FROM CAN SEE TO CAN'T SEE
33.38% like nightlong
SEVENTY-SECOND
33.38% like nightlong
FORTY-SECOND
33.38% like nightlong
SOMNOLESCENT
33.38% like nightlong
NIGHT BLIND
33.38% like nightlong
PREBEDTIME
33.38% like nightlong
DUSK
33.38% like nightlong
QUATRIDUAL
33.38% like nightlong
HYPERNYCHTHEMERAL
33.38% like nightlong
POSTMIDNIGHT
33.38% like nightlong
MOMENTARY
33.38% like nightlong
SLEEPING
33.38% like nightlong
VESPERTINE
33.38% like nightlong
AFTER-HOURS
33.38% like nightlong
DIURNAL
33.38% like nightlong
INFRADIAN
33.38% like nightlong
NINTH-INNING
33.38% like nightlong