If you find evidence of bed bugs, notify hotel management immediately and request a different room. Signs of bed bug bites include a small, hard, swollen white welt at the site of the bite, accompanied by severe itching that usually lasts a couple .Memory foam mattresses are usually made out of a more solid core and hence these bugs cannot find places to hide in it. On the other hand, the spring mattresses have a lot of room for these bugs to roam around and are also susceptible to cracks or crevices.