Start With the Threat
Most home invasions happen fast. The FBI data shows the average confrontation inside a home lasts under 30 seconds. That changes everything about how you think about your setup. You don't need a safe room with three locks — you need a gun you can get to in the dark, in a panic, without fumbling.
The Gun
I run a Glock 19 on the nightstand. Not a shotgun, not a rifle — a handgun. One hand can work it while the other is on a phone calling 911. It takes 9mm defensive ammo (Federal HST 147gr), holds 15+1, and I've put 3,000 rounds through it. I know exactly how it runs.
Light and Access
A weapon light isn't optional. You cannot shoot what you cannot identify. The Surefire X300U is what I use. Pressure switch on the frame, comes on instinctively. At 3am you will not remember to grab a separate flashlight.
Storage
Hornady RAPiD safe. Biometric plus a RFID band I wear to bed. Opens in under a second. Stays locked when my kids are around. That's the balance — fast access for me, no access for anyone else.
DownRange Bottom Line
Pick a reliable handgun you shoot well. Add a weapon light. Get a quick-access safe. Practice the draw in the dark until it is automatic. That's it.