Ina Fried is likely to sleep between 11 p.m. and 5 a.m.
Ina Fried - Senior Editor at All Things Digital, covering mobile stuff, and huge softball, hockey, basketball fan. Co-Producer, D: Dive Into Mobile
Ina Fried is located in San Francisco (Pacific Time (US & Canada) time zone). If the sleeping schedule doesn't appear right, maybe @inafried hasn't specified the correct timezone in their Twitter profile.
Use the search box to know the sleeping schedule of another Twitter user.