Originally Posted by JDT
I don't know how to post a link but go to Amazon. com and do a search for "pet travel bed for car". Look for the kind that have a strap that goes over the headrest and have a tether for attaching to the dog's harness. Our dogs love theirs and will sleep in them most of our travel day. There is still room between them for a passenger. Our 18 year old granddaughter did a 700 mile trip with us riding there. The tether is pretty short and restricts them from moving around much but our dogs took very little to adjust.
I know your dogs are much larger than ours which will require a larger bed but just trying to give some options.
Here is the one we got thru Amazon earlier this year. Very happy with it..
Dog Seat Cover for Cars, TaoTronics Pet Car Seat Covers , Dog Hammock, Slip-proof, Waterproof by TaoTronics
4.7 out of 5 stars 450 customer reviews | 32 answered questions
#1 Best Sellerin Dog Booster Seats
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Sold by Sunvalleytek and Fulfilled by Amazon.
Fourfold Reinforced Slip-Proof DOG SEAT COVER: Grippy loop material on the back which tuck into the creases of the back seat to hold it down, Seat anchor can insert to the crevice to fasten the cover, 4 sets of adjustable plastic clips that attach around the headrest in the front and the back to fix cover firmly, Padded oxford fabric texture appearance helps your dogs stay in place cozily.
Double Layer Waterproof and Reinforced Scratch-proof: heavy-weighted 4-layer design in water-resistant oxford fabric, soft cotton layer, 100% waterproof polyester, and grippy loop PVC material to offer Best Quality Durable seating for your pets and your car, protecting your leather seat perfectly from water, drink, spill, milk moisture etc. Retaining its shape and provides enough thick resistance against dog's nails/paws.
Stain-proof PET SEAT COVER: Seat belt buckles opening and Velcro closure for it can prevent dogs, pets, or humans mess up backseat leather from crumbs of cereal, snacks, fruit, dander, dirt etc.
DOG HAMMOCK style not only protects the back seat but it also protects the backs of the front seat and the center console
Versatile BACKSEAT COVER : Acts as a fold-in CAR SEAT COVERS with the Velcro strap, suitable for not only pet, but also kids, human. Available for most cars, trucks, automotives and SUVs (approximately 54x58 inches). Not only for small medium dogs, Perfect for large breeds.