Costco offers its members this Privacy Pop Bed Tent
in Twin or Twin Extra Long for $89.99
with free shipping
. (Non-members must pay $4.50 more.) That's the lowest total price we could find for either size by $40. It includes a tent, four poles, and carrying bag.
It's also available in Full for $99.99 with free shipping. (Non-members pay $5 more.) That's another price low, this time by $50.