anstona

Just the sleeping part really since its like completely different. It just kinda jogged my memory of the series. "Yuji Kaido was diagnosed with a serious disease and cryogenically frozen. He wakes up more than 20 years later—and Earth is nothing like what he remembers. A race of alien bugs called the Blue have taken over the planet, and a few select humans have retreated to the space station called Second Earth. Yuji is met by a group of humans from Second Earth that is trying to save him. Yuji and this group must survive the Blue-infested Earth and fight their way back to Second Earth. Things are not as simple as they seem, as the Blue are both powerful and mysterious, attacking only humans."

Sounds interesting, kinda reminds me of blue gender except the mc wasn't sleep for that long xD and civilization was destroyed.