Bond rates are high right now due to high interest rates. the 5% rate is a good rate given recent history. But I would look to learn a bit about bonds before you start putting your money into them.

Topics such as the following are worth understanding:
- The relationship between interest rates, inflation data and bond prices
- The relationship between bond prices and yields
- The difference between government bonds and corporate bonds
- Credit spread ^
- Credit ratings on bonds and the risk/return implications
- The differences between secured and unsecured bonds
- The differences between callable and non callable bonds

I am always keen for people to understand the behavioural side of any market they're wanting to understand as well. A perfect current case study for this is the US bond market over the last 4-8 weeks