PNG SVG PSD EPS MORE
Interface
Flat
Emotions Rounded
square, Resting, emoticons
Black
512x512
emoticons, square, sleep
Sleepy, Face, interface
People
iOS7 Premium Fill 2
sleep, people, Sleepy
shapes
iOS7 Set Lined 2
Stars, shapes, Half Moon
Humans
Sick, tired, Sleepy
office, tired, desk
other
Celebrations
Baby Toy, bear, Sleepy
PNG ICO ICNS SVG MORE
Avatars & smileys
Reactions
Sleepy, Emoji, Emoticon
SandyBrown
Gestures
smiley, sleep, Gestures
Map Icons
Sleepy, Hostel, Bed
PNG ICO ICNS MORE
Patapon
Sleepy, yaripon
256x256
PNG ICO MORE
Pidgin 'Old' Tango Smilies
Sleepy
Khaki
24x24
Buuf
Sleepy, derp, sync
DarkKhaki
128x128
Christmas
Outline
Anti-Christmas
littlebird, tired, Sleepy
Cartoon
Very Emotional Emoji
dreams, tired, smiley
SkyBlue
64x64
PNG MORE
Family & home
Pixel
Shrunk Pidgin Smilies