There is a SpringHill Suites just down the street on Summit Park Drive....maybe 1/2 mile away. Nice spacious rooms, pool, not too expensive.
The Grove City outlet is about an hour and a half north on Rt. 79. It is very easy to find.
The Embassy Suites is nearby; it's particularly good if you're coming with a group of people. Also a brand-new Double Tree in Moon Township. Both about 10 min. from Ikea.
Shopping is really the major entertainment in the immediate vicinity of Ikea. Don't know when you are planning to visit, but the Montour Trail, a nice walking/biking trail is nearby.
If you want to venture into the city, there's the Penguins, theatre, bars and clubs, etc.