Sleeping on a wood deck

The wood deck is hard and if it is cold, you will feel it as it pushes thru the sleeping bag.  An inflated air mattress will make it more comfortable.  The  battery operated types will be easier to use. Be sure the batteries work or have spares with you.

Taken from the walmart.com website:
The Insta-bed air bed offers unmatched convenience and comfort, which will make you think you never left your own bed. It is ideal for holiday guests, sleepovers, weekend visitors, vacations, college dorms or weekend getaways.

Insta-bed Standard Air Bed with External 4D Battery Pump, Twin:

• 28 circular coils create a comfortable sleeping surface
• Powerful external 4D battery pump for effortless inflation and deflation
• Soft-touch flocked top holds bedding in place
• Secure press-lock valve maintains pressure
• Carry bag included
• Inflated dimensions: 74" x 39" x 9"
• Top material: Flock 0.50mm
• Side and bottom material: PVC 0.30mm
• Model# 840020

Air Mattresses at Walmart