Considering trying a triple glazed window in front bedroom to reduce noise, (road noise coming in not bedroom noise going out) worth it, any recommendations ?

Have you tried earplugs?

If it works then it's totally worth it, especially if the window could do with being replaced anyway.

make sure you get the biggest unit possible ie the ai gap between the panes of glass otherwise there will be very little difference although there will be a difference

I'm confused, that's the bloody Internet for you, from what I gather so far for best results you need at least two thickness's of glass, say 4 & 6mm just for example, that way they don't resonate and reduce different sound waves, now all the triple glazing I hav found to date seems to be 4-12-4-12-4, four been the glass thickness and 12 the gap........help ?

That's because the triple glazing is designed / intended for heat loss purposes.
Not sound reasons.. 12mm is the 'best' distance between sheets for insulation.
Easier simpler to buy / fit a Storm window arrangement on the outside of your existing window(s)

I went round all my old frames renewing some hinges, glazing seals and frame seals. The difference in noise was the biggest change.

Do you have trickle vents? alot of noise can come through the vents, and you can get accoustic versions. Would be alot cheaper to replace them first.

A lot of the heat transfer (and I would assume noise too) is through the frame. The local company I used stated theirs had more cavities with less thermal bridges from inside to outside.
This makes sense and I would have thought a multi cavity frame extrusion would help noise reduction.

But how about a different approach?

Thicker curtains?
Additional lining to curtains?
Roller blinds behind your curtains?
Planting trees or shrubs out the front (no, not 40ft high leylandii, but perhaps a hedge to reduce some road noise before it even gets to your house).

Or high tech approach (yes now I'm going to be silly)....
microphone outside, speakers in the bedroom, noise cancelling audio controller. The science to this works.

Move in to the stables Jon

Just ordered from these for my living room

For heat and sound from road n wind.

They worked in bedroom and alot warmer.

http://www.duration.co.uk/

I went for for economy and they worked out very cheap.