Can you solve this sleep medicine-themed crossword puzzle, designed specifically for Sleep Review readers? A hard copy published in the January 2019 issue.


Click on the thumbnail or 0119Crossword to open a printable PDF.


1 Book about sleeplessness by Marina Benjamin

6 Many of these birds sleep during the day

9 Ending for expert

11 Laughter noise

12 Ear passage

13 The E in REM

14 Place to spend the night

16 Sleep surgeon, abbr.

17 “The Soldier,” “The Freefall,” and “The Log” are names for different sleep _____

19 Prefix meaning “upon” or “near”

20 Period of history

22 Bad dream

25 Poison

28 Negative vote

29 Where a type I polysomnogram is done

31 Cone bearing tree

34 Estimated healthy adult sleep duration, 2 words

37 Quantities, abbr.

39 Prosecutor, for short

40 Electrode accessory

41 “Hit the __”: go to bed

42 Flight where most people don’t sleep much, 2 words


1 In the early stages

2 Balloon ____ dilation, a minimally  invasive procedure that can clear some types of breathing obstructions

3  Disorder in which breathing stops when asleep, abbr.

4 Biorhythm-regulating hormone

5 Freezing liquid

7 Over-the-counter devices that may help people with insomnia, first word of two (place second word of two in 15 down)

8 Computer network, abbr.

10 Z, plural

15 Over-the-counter devices that may help people with insomnia, second word of two (place first word of two in 7 down)

18 The nose is one

21 Apprehension that can lead to lack of sleep

23 Ductless hormone-secreting gland in the neck

24 Hay fever, for example

26 Deployment __ resources

27 Controls the diameter and size of the pupil

30 Word indicating authorship

32 Doctor of philosophy, abbr.

33 Cheerleading word

35 Cigarette component

36 Understand

38 Boston’s state

To suggest clues for an upcoming sleep crossword, email sroy[at] To sponsor a future puzzle, email rfelts[at]

Answer Key


Myles Mellor is a full-time professional crossword puzzle writer who is internationally published.