From their website:
SCHOOLSOUT Terms & Conditions
CheapTickets Coupon– Save 16% on Selected Hotels!
Coupon Code: SCHOOLSOUT
Qualifying Bookings: This coupon code discount applies only to stand-alone select hotel bookings (not a hotel booking in combination with any other product such as flight + hotel or flight + hotel + car) made online at www.cheaptickets.com that are pre-paid at the time of booking (subject to the restrictions set out in the terms and conditions below).
Coupon code value: 16% off.
Maximum Discount Value: The maximum savings discount is up to $150.
Redemption Period: 12:01am CST, April 29, 2019 to 11:59pm CST, May 19, 2019.
Travel Period: The travel dates must be between April 29, 2019 and December 31, 2019 (inclusive).
How to use your coupon code
• You must make your hotel booking online with Cheaptickets.com.
• Search for a hotel for your desired stay dates, within the travel period given above.
• During the booking process, on the payment page you will see the link “Enter coupon code” where you can enter the coupon code.
• Enter the coupon code in the relevant field and then click the “Apply” button. If your booking is eligible, the applicable discount will be subtracted from the price of the travel reservation before the application of any taxes, applicable fees or additional costs.
• This offer does not apply to multi-room bookings.
See Terms and Conditions for details. Keep in mind that bigger Hotel chains tend to be excluded from those deals. You can also use this code to price match with Hotels.com since their terms and conditions only disallow "using a coupon or other promotion not offered to the general public" whereas this one is offered to the general public (use at your own risk).
They used to be good until they started excluding some hotels.