"Throw pillows are technically there for lumbar support, so it's helpful to have them when needed, but if you have a sofa that is more formal for seating and the back on the seat sits you up ...
It’s amazing how even a single night of bad sleep can throw your back out ... Whether you’re in bed or on a sofa, in a car, or at your desk, the Vamorry lumbar pillow helps your posture ...