A ~65 watt load running all night is going to take some battery capacity. Tell us more about your parameters? What method and how often would you like to have to recharge? How long will you be using it nightly?
I would definitely go with a smaller LFP if recharging will be frequent.
Expect to pay more, but if treated appropriately will last 10+ years. Lithium chemistry can easily be discharged much more deeply than lead acid. If weight is important, LFP all the way. You can go with the kind of batteries we use in flashlights but it is more dangerous if things go wrong.
Something like this is a retail option and will cost more for shipping. What region are you located? Cheap stuff on Amaramazon is available online.
NOTE: lithium batteries cannot be shipped to Hawaii via UPS Ground. If you need this battery shipped to Hawaii, please email us or give us a call to place your order.
www.solar-electric.com
If you are looking for cheaper and are ok with lead acid chemistry, checking your local battery sources for perhaps an absorbed glass mat or gel motorcycle sized battery might work. Easier to return if a problem and will not have to pay shipping.
Used LFP can be had for a good price but run the risk of unimpressive performance. (Batteryhookup)
Eastern United States has this store but once again shipping and a retail price:
Click here for Universal Battery Universal Ub1280 12V, 8Ah(20Hr) Sealed Agm Battery from altE® - Making Renewable Do-able since 1999.
www.altestore.com