"dress of your dreams" (9)
I believe the answer is:
nightgown
(Other definitions for nightgown that I've seen before include "Sleeping garment" , "Cover for retirement" , "Dress for bed?" , "Bedtime attire" , "Bedtime wear" .)
I believe the answer is:
nightgown
(Other definitions for nightgown that I've seen before include "Sleeping garment" , "Cover for retirement" , "Dress for bed?" , "Bedtime attire" , "Bedtime wear" .)