JetBlue, which did away with its standard pillows and blankets, will continue to offer free “Snooze Kits,” which include an eyeshade and ear plugs, on some overnight flights.

The move is the latest in a series of efforts by airlines to counter the surging cost of jet fuel with additional a la carte options. In the last year, the nation’s largest airlines have begun charging fees for everything from checked baggage to excess leg room.

JetBlue said last month it expects to collect about $40 million from customers who take the option of buying extra leg room on flights. Though JetBlue has yet to begin charging for fliers’ first checked bag, its $15 second-checked-bag fee is expected to raise another $20 million in additional revenue.

Tempe, AZ-based US Airways charges $15 for the first checked bag and $25 for a second. Last week, the airline began charging customers $2 for non-alcoholic beverages. It also collects fees associated with choice seating ($5), meals ($7), snack boxes ($5) and alcoholic beverages ($7).