La Quinta Inns & Suites
This Seattle Guest house, couple years ago has weekend promo, so it is $59/night. lq.com is a chain hotel. People has good words about it. It is close to the Science World, just 6 blocks. Also the nice thing about it is they offer free breakfast. The Seattle downtown location is 8th ave and denny way.
Bed & Breakfast on Broadway
This family guest house started in 1904. According to people lived there before, it is one of the best Seattle family guest house/hotels.
The Seattle Bed and Breakfast sits on a quiet, residential block of Broadway, the main avenue of historic Capitol Hill, one of Seattle's most colorful and best-loved neighborhoods. Every reservation includes continental breakfasts.
Other than the above two guest houses, the following Seattle downtown's hostels are cheaper and convenient with good restaurants.
City Hostel Seattle
2327 2nd Avenue, Seattle, WA, 98121
520 S. King Street, Seattle, WA 98104
Seattle Green Tortoise Hostel
105 1/2 Pike Street Seattle, WA 98101