10 year TIPS real rate (real time):
https://www.cnbc.com/quotes/US10YTIP
Let me know if you go for some of these...I own a bit of it (from the intial auction, it is now quite a bit under water but will likely add to the position if the real rates keep rising.)
ETA: Last September I drew this very simple support line on the TLT chart. Back then, it was a note to myself not to go long if the $TLT support broke. Once it did, I occasionally rlook at it to remind myself. Honestly, I should print it out and
tape it to my forhead everytime I've wanted to go big on any long term bond...as I've made a few "mistakes" and bought an occasional 5/10 year. (Not big, I would guess < 2% of my total net worth.) Eventually, sometime, it will be good to go big and lock in longer term...but this ugly chart (which keeps getting uglier) is a good reason to hesitate.
http://tos.mx/M6h4K4C