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Your SleepPhones® Size

Measure around your forehead, just above the ears, and around your hair in the back to determine head size. If your measurement falls on a size cut off, we recommend that you order the smaller size SleepPhones® as there is a bit of stretch in the material (95% polyester, 5% spandex).

 SleepPhones® Size

Hat Size (US)

Hat Size (UK)

Inches

cm

Estimate

 Extra Small

Up to 6 3/4

Up to 6 3/4

20 - 21 3/8

51 - 54

Petite women

 One Size Fits Most

6 7/8 - 7 3/8

6 7/8 - 7 3/8

21 1/2 - 23 3/8

55 - 59

Nearly everyone

 Extra Large

7 1/2 and Up

7 1/2 and Up

23 1/2 - 2560 - 63Large and tall men with hair

 RunPhones® Size

Hat Size (US)

Hat Size (UK)

Inches

cm

 Small

Up to 7 1/2

Up to 7 1/2

20 - 23 1/2

50 - 60

 Medium

7 1/2 - 8 1/4

7 1/2 - 8 1/4

23 1/2 - 25 1/2

60 - 65

 Large

8 1/4 +

8 1/4 +

25 1/2 +65 +